2nd Lieutenant William Henry Hubbard joined the Royal Flying Corps at Toronto on 9 August 1915 and received Royal Aero Club Aviator's Certificate 2871 on a Maurice Farman biplane at military school, Catterick Bridge on 9 May 1916. As a reconnaissance pilot serving with 5 and 7 Squadrons, he flew the B.E.2c and scored one victory against a Fokker Eindecker on 8 September 1916. Badly wounded by Erwin Böhme on 26 December 1916, he eventually returned to duty as a flight instructor during the summer of 1917. In March 1918, he was assigned to 73 Squadron as a flight commander. Flying the Sopwith Camel, he scored eleven more victories before the Armistice was signed.
Great Britain, Royal Aero Club Aviators' Certificates, 1910-1950
Distinguished Flying Cross (DFC)
Capt. William Henry Hubbard.
During recent operations he has repeatedly descended to low altitudes to release his bombs and to open machine-gun fire on troops and transport. He has shown the greatest gallantry, judgment and presence of mind. On several occasions he has attacked and driven down out of control enemy aeroplanes.
Capt. William Henry Hubbard, D.F.C.
This officer has shown great bravery and devotion to duty in destroying enemy aircraft, ten of which he has accounted for, and in silencing anti-tank guns. On 27 September, flying at altitudes between 200 and 1,500 feet, he engaged and silenced many anti-tank guns, thereby rendering valuable service. He, at the same time, completed a detailed and accurate reconnaissance of the area, locating the position of our troops.